Fig. 2
From: The Cell Ontology 2016: enhanced content, modularization, and ontology interoperability
Logical definition for ‘T-helper 1 cell’ (CL:0000545). The logical definition for the cell type ‘T-helper 1 cell’ as presented by the Protégé ontology editor. The logical definition uses imported classes the Protein Ontology (‘T-box transcription factor TBX21’, PR:000001835; ‘C-X-C chemokine receptor type 3’, PR:000001207; and ‘C-C chemokine receptor type 6’, PR:000001202) and the Gene Ontology (‘interferon-gamma production’, GO:0032609). Note some anonymous ancestor classes are not shown due to space considerations